unified main comments

[libfirm] / ir / be / bespillmorgan.c

diff --git a/ir/be/bespillmorgan.c b/ir/be/bespillmorgan.c
index a629a9f..1ebce39 100644 (file)
--- a/ir/be/bespillmorgan.c
+++ b/ir/be/bespillmorgan.c
@@ -1,32 +1,52 @@
 /*
- * Author:      Matthias Braun
- * Date:               05.05.2006
- * Copyright:   (c) Universitaet Karlsruhe
- * License:     This file is protected by GPL -  GNU GENERAL PUBLIC LICENSE.
+ * Copyright (C) 1995-2007 University of Karlsruhe.  All right reserved.
  *
+ * This file is part of libFirm.
+ *
+ * This file may be distributed and/or modified under the terms of the
+ * GNU General Public License version 2 as published by the Free Software
+ * Foundation and appearing in the file LICENSE.GPL included in the
+ * packaging of this file.
+ *
+ * Licensees holding valid libFirm Professional Edition licenses may use
+ * this file in accordance with the libFirm Commercial License.
+ * Agreement provided with the Software.
+ *
+ * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
+ * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE.
+ */
+
+/**
+ * @file
+ * @brief       Morgans spill algorithm.
+ * @author      Matthias Braun
+ * @date        05.05.2006
+ * @version     $Id$
  */
 #ifdef HAVE_CONFIG_H
 #include "config.h"
 #endif
 
-#include "bespillmorgan.h"
-
-#include "bechordal_t.h"
-#include "bespill.h"
-#include "belive_t.h"
-#include "beabi.h"
 #include "irgwalk.h"
-#include "besched.h"
-#include "beutil.h"
 #include "irloop_t.h"
 #include "irgraph_t.h"
 #include "irprintf.h"
-#include "obstack.h"
+#include "obst.h"
 
+#include "bespillmorgan.h"
+#include "bechordal_t.h"
+#include "bespill.h"
+#include "belive_t.h"
+#include "beabi.h"
 #include "bespillbelady.h"
 #include "beverify.h"
 #include "benodesets.h"
 #include "bespilloptions.h"
+#include "besched.h"
+#include "beutil.h"
+#include "bemodule.h"
+#include "beirg_t.h"
 
 #define DBG_LIVE               1
 #define DBG_LOOPANA            2
@@ -541,18 +561,15 @@ static int reduce_register_pressure_in_loop(morgan_env_t *env, const ir_loop *lo
 }
 
 void be_spill_morgan(be_irg_t *birg, const arch_register_class_t *cls) {
-       ir_graph *irg = be_get_birg_irg(birg);
+       ir_graph     *irg = be_get_birg_irg(birg);
        morgan_env_t env;
 
-       FIRM_DBG_REGISTER(dbg, "ir.be.spillmorgan");
-       //firm_dbg_set_mask(dbg, DBG_SPILLS | DBG_LOOPANA);
-
        be_assure_liveness(birg);
 
        env.arch = birg->main_env->arch_env;
-       env.irg = irg;
-       env.cls = cls;
-       env.lv = be_get_birg_liveness(birg);
+       env.irg  = irg;
+       env.cls  = cls;
+       env.lv   = be_get_birg_liveness(birg);
        env.senv = be_new_spill_env(birg);
        DEBUG_ONLY(be_set_spill_env_dbg_module(env.senv, dbg);)
 
@@ -560,13 +577,13 @@ void be_spill_morgan(be_irg_t *birg, const arch_register_class_t *cls) {
 
        env.registers_available = env.cls->n_regs - be_put_ignore_regs(birg, env.cls, NULL);
 
-       env.loop_attr_set = new_set(loop_attr_cmp, 5);
+       env.loop_attr_set  = new_set(loop_attr_cmp, 5);
        env.block_attr_set = new_set(block_attr_cmp, 20);
 
-       /*-- Part1: Analysis --*/
+       /* -- Part1: Analysis -- */
 
        /* construct control flow loop tree */
-       if(! (get_irg_loopinfo_state(irg) & loopinfo_cf_consistent)) {
+       if (! (get_irg_loopinfo_state(irg) & loopinfo_cf_consistent)) {
                construct_cf_backedges(irg);
        }
 
@@ -574,7 +591,7 @@ void be_spill_morgan(be_irg_t *birg, const arch_register_class_t *cls) {
        irg_block_walk_graph(irg, construct_block_livethrough_unused, construct_loop_edges, &env);
        construct_loop_livethrough_unused(&env, get_irg_loop(irg));
 
-       /*-- Part2: Transformation --*/
+       /* -- Part2: Transformation -- */
 
        /* spill unused livethrough values around loops and blocks where
         * the pressure is too high
@@ -585,10 +602,10 @@ void be_spill_morgan(be_irg_t *birg, const arch_register_class_t *cls) {
        be_insert_spills_reloads(env.senv);
 
        /* Verify the result */
-       if(birg->main_env->options->vrfy_option == BE_VRFY_WARN) {
-               be_verify_schedule(irg);
+       if (birg->main_env->options->vrfy_option == BE_VRFY_WARN) {
+               be_verify_schedule(birg);
        } else if (birg->main_env->options->vrfy_option == BE_VRFY_ASSERT) {
-               assert(be_verify_schedule(irg));
+               assert(be_verify_schedule(birg));
        }
 
        /* cleanup */
@@ -610,6 +627,7 @@ void be_init_spillmorgan(void)
        };
 
        be_register_spiller("morgan", &morgan_spiller);
+       FIRM_DBG_REGISTER(dbg, "ir.be.spillmorgan");
 }
 
 BE_REGISTER_MODULE_CONSTRUCTOR(be_init_spillmorgan);